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2025-02-28 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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How to realize the port mapping function in iptables? aiming at this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.
The gateway and its configuration dual network card
Eth0:192.168.0.11eth2:202.106.76.231
Other private network machines set the gateway to 192.168.0.11
Echo 1 > / proc/sys/net/ipv4/ip_forward/sbin/modprobe ip_tables/sbin/modprobe ip_conntrack/sbin/modprobe ip_conntrack_ftp/sbin/modprobe ip_nat_ftpiptables-t nat-Fiptables-F INPUTiptables-F OUTPUTiptables-F FORWARDiptables-t nat-A POSTROUTING-s 0-j MASQUERADE
# then you can set the mapping port
# map out: 192.168.0.10 virtual 80 as follows
Iptables-t nat-A PREROUTING-d 202.106.76.231-p tcp-- dport 80-j DNAT-- to 192.168.0.10:80iptables-t nat-A POSTROUTING-d 192.168.0.10-p tcp-- dport 80-j SNAT-- to 192.168.0.11
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Iptables-t nat-L-n
Clear what has just been set
This is the answer to iptables-t nat-F's question on how to implement port mapping in iptables. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.
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